Patent EA-001013-B1 (EA)
Title: Mechanical system for indicating large size calendar date for watch or small clock movements
Inventor: JOURNE FRANCOIS-PAUL
IPC: G04C17/00
Filed: 1998-09-10
Abstract: 1. A mechanical system indicating large size calendar date for watch and small clock movements , characterized in that said mechanical system comprises a dial plate with a large size open window, a block of units of the month comprising a programmed initial date ring or a combination of the initial date ring and the programmed initial date ring with 31-st cipher, namely 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, and also a 4-toothed ring, a block of the ten's of the month with indicating ciphers from 0 to 3 forming an integral with a star of the ten's of the month, thanks to, in contrast to common initial data ring, the programmed initial data ring do not comprise a compound number for indicating the ten's of the month, thanks to, in contrast to the ciphers drawn on the programmed initial data ring and on the disk of the ten's of the month, appear successfully in the right and respectfully in the left part of the large size open window of the dial plate, thanks to, in contrast to the star of the ten's of the month, being dependent and operated directly from the corresponding ring arranged on the programmed ring, the cambered slots of said ring drive each star forward by one tooth at a time making 31 slots per one revolution. 2. A mechanical system of claim 1, characterized in that the programmed initial data ring, like common initial data ring, comprises drawn on it and tangentially disposed 31 cipher, namely 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, equidistantly spaced and designed for indicating the units of the month, and in contrast to the common initial data ring, the programmed initial data ring do not comprise ciphers for indicating the ten's of the month. 3. A mechanical system of claim 1, characterized in that the programmed initial data ring can either replace the common initial data ring or can be arranged on that initial data ring. 4. A mechanical system of one of the preceding claims, characterized in that the programmed initial data ring comprises a 4-toothed ring to operate the star and the disk of indication of the ten's of the month. 5. A mechanical system of claim 1, characterized in that the operating unit of the ten's of the month is designed turnable around the parallel axis on the bottom plate and disposed on one level with the programmed initial data ring crown. 6. A mechanical system of one of the preceding claims, characterized in that the large size open window in the dial plate is between the center of the dial plate and the indicators of 6H-12H. 7. A mechanical system of one of the preceding claims, characterized in that the crown of the star of the ten's of the month comprises 4 teeth meshing with 4 teeth of the programmed ring. 8. A mechanical system of one of the preceding claims, characterized in that the crown of the star of the ten's of the month comprises 4 teeth coinciding with ciphers 1, 10, 20 and 30 of the crown of the ring of units of the month of said initial data ring, and the star of the ten's of the month comprises 4 teeth. 9. A mechanical system of one of the preceding claims, characterized in that the ciphers drawn on the programmed initial data ring are tangentially disposed and equidistantly spaced along its periphery. 10. A mechanical system of one of the preceding claims, characterized in that the ciphers drawn on the disk of the ten's of the month are tangentially and cross-like disposed. 11. A mechanical system of one of the preceding claims, characterized in that further comprises a suspension unit fixed the bottom plate with an axial screw contacting branches and/or the teeth of the star of the ten's of the month arranged on this level to maintain it in a stable angular position in between the successive action. 12. A mechanical system of one of the preceding claims, characterized in that further comprises a lock spring fixed to the bottom plate with an axial screw to maintain the suspension unit in between the successive action and for maintaining a stable angular position in between the successive action. 13. A mechanical system of one of the preceding claims, characterized in that the toothed ring is an initial data ring of the watch movement. 14. The watch movement comprising a system of toothed stars which drives each star forward by one tooth at a time completing a full revolution in thirty one path, characterized in that said system of toothed stars operates the watch movement according to one of the preceding claims.